# IMO Level 1- Mathematics Olympiad (SOF) Class 7: Questions 342 - 354 of 1022

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## Question 342

### Question

MCQ▾If , then x is ________.

### Choices

Choice (4) | Response | |
---|---|---|

a. | 25 | |

b. | 14 | |

c. | 23 | |

d. | 12 |

## Question 343

## Question 344

### Question

MCQ▾A factor of is ________.

### Choices

Choice (4) | Response | |
---|---|---|

a. | ||

b. | 5 | |

c. | ||

d. | All a., b. and c. are correct |

## Question 345

## Question 346

### Question

MCQ▾What is the value of at ?

### Choices

Choice (4) | Response | |
---|---|---|

a. | Discriminant | |

b. | c | |

c. | a | |

d. | 0 |

## Question 347

## Question 348

### Question

MCQ▾The value of x, for which is ________.

### Choices

Choice (4) | Response | |
---|---|---|

a. | ||

b. | 3 | |

c. | ||

d. | 1 |

## Question 349

### Question

MCQ▾If , then the value of .

### Choices

Choice (4) | Response | |
---|---|---|

a. | 36 | |

b. | 30 | |

c. | 33 | |

d. | 39 |

## Question 350

### Question

MCQ▾A contractor employed 120 men to build a house in 45 days. After 15 days, he was joined by 30 more men. In how many days will the remaining work be finished?

### Choices

Choice (4) | Response | |
---|---|---|

a. | 20 days | |

b. | 18 days | |

c. | 28 days | |

d. | 24 days |